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Finding the Fourth Proportional to 5,728.99, 8,592.65 and 2,220.67

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Solution

The fourth proportional to 5,728.99, 8,592.65 and 2,220.67 is: 3,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.99 : 8,592.65 = 2,220.67 : x
  2. Step 2: Convert to fraction form
    5,728.99/8,592.65 = 2,220.67/x
  3. Step 3: Cross multiply
    5,728.99x = 8,592.65 × 2,220.67
  4. Step 4: Simplify right side
    5,728.99x = 19,081,428.97
  5. Step 5: Solve for x
    x = 19,081,428.97/5,728.99
  6. Step 6: Final answer
    x = 3,330.68

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.